Hello all..

Im just about to crack fill the gyprock in my downstairs rec room. Im planning on getting a set of qs8's. My question is where would the speaker placement be better suited? At the rear of room or on side walls near the rear of the room. Room is 15 wide by 21 long. I dont plan on going to a 6.1 set up so it will be just the two rear speakers. My ceiling is 8 feet tall but on one wall I have duck work boxed in that runs the length of the room so I loose 3 feet width on that side which comes down about 1 foot then back towards the side wall for the full 15 feet. My rear couch will be about 6 feet from the back of the room so will the speaker placement be better suited at the rear of the room ( 6 feet from couch ) or near the back but on the side walls???? What have you all done?